Determination of rate of photosynthesis INTRODUCTION Photosynthesis is the major process by which light from the sun is captured by plants‚ algae and some bacteria to produce energy. It is a process in which light energy is converted into chemical energy which is then stored in sugars. Photosynthesis occurs in two stages‚ light-dependant reactions and light-independent reactions. In light-dependent reactions the chlorophyll traps light energy which is then used to excite electrons and split water
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respiration and photosynthesis. Photosynthesis is performed by plant organisms and some bacteria‚ and cellular respiration is performed by all living organisms. These two processes are reliant on each other. Photosynthesis creates oxygen‚ which is used in cellular respiration. Cellular respiration in turn creates carbon dioxide‚ which is an important “ingredient” in the process of photosynthesis. Let’s take a closer look at what makes these processes so important to all living things. Photosynthesis is the
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Photosynthesis notes -sunlight brings energy to Earth -the energy in sunlight is packaged in photons -the photosystems in the thylakoid membrane capture photons -pigments in the photosystems have an antenna complex that actually grabs the photons -chlorophyll b captures the photons and transfers the energy to chlorophyll a (the reaction center) -when the reaction center receives the energy it donates an electron -the donated electron will move down the electron transport system (ETS) -ETS
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Both photosynthesis and cellular respiration are the main pathways of energy transportation in organisms. However‚ the reactants and the products are exact opposites in photosynthesis and in cellular respiration. In photosynthesis‚ cells take in carbon dioxide (CO2) and water (H2O) by absorbing energy from the sun‚ and then the cells release oxygen (O2) and store glucose (C6H12O6). The formula of photosynthesis is: Light energy 6CO2+6H2O → C6H12O6+6O2
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Photosynthesis depends on an interaction between two sets of reactions: the light reactions and the Calvin cycle. Chlorophyll and the other molecules responsible for the light reactions are built into the thylakoid membranes. The enzymes that catalyze the Calvin cycle are located in the stroma. Beginning with the absorption of light by chlorophyll‚ the light reactions convert light energy into chemical energy in the form of ATP and NADPH. The ATP provides the energy‚ and the NADPH supplies the electrons
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Light Lab Report Introduction: Without light‚ plants would not be able to carry out photosynthesis (McKenney‚ Peffley‚ and Wilmington 49). Photosynthesis is responsible for providing the plant with nutrients it needs to thrive and grow. Without the proper nutrients‚ it is difficult for a plant to continue to live. Therefore‚ photosynthesis is necessary for a plant’s vitality. The goal of this experiment is to observe and identify the impact that light has on a plant. Hypothesis: If light
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* When oxygen is present‚ pyruvic acid enters the mitochondrion 1. Each pyruvic acid (2) converted to Acetyl CoA (2) 2. Co2 (2) is released 3. 2 NADH made (still in cytoplasm) Krebs Cycle * aka CITRIC ACID CYCLE‚ takes place in Mitochondrial Matrix * Acetyl CoA enters the cycle one at a time‚ and all carbons will eventually be converted to CO2 * Oxaloacetate- a 4-Carbon molecule (the Acetyl CoA binds with in this stage…) * this forms a 6-Carbon molecule- Citric Acid
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of Carbon Dioxide (CO2) Carbon Dioxide (CO2)‚ a chemical made up of one carbon atom and two oxygen atoms‚ is a non-flammable‚ odorless and colorless gas that exists naturally in the atmosphere. CO2 is one of the greenhouse gases‚ amongst methane‚ nitrous oxide and other gases‚ which keeps the Earth’s temperature habitable (UCAR). Without it‚ the Earth will be inhospitably cold. However‚ ever since the mid-nineteenths century‚ humans have significantly increased the amount of CO2 emitted into the atmosphere
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Part2: Problem analysis: Agriculture: “While CO2 is essential for plant growth‚ all agriculture depends also on steady water supplies‚ and climate change is likely to disrupt those supplies through floods and droughts. It has been suggested that higher latitudes—Siberia‚ for example—may become productive due to global warming‚ but the soil in Arctic and bordering territories is very poor‚ and the amount of sunlight reaching the ground in summer will not change because it is governed by the tilt of
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Journal of Food Engineering 95 (2009) 240–253 Contents lists available at ScienceDirect Journal of Food Engineering journal homepage: www.elsevier.com/locate/jfoodeng Review Application of supercritical CO2 in lipid extraction – A review F. Sahena a‚ I.S.M. Zaidul a‚*‚ S. Jinap a‚ A.A. Karim b‚ K.A. Abbas a‚ N.A.N. Norulaini c‚ A.K.M. Omar b a b c Faculty of Food Science and Technology‚ Universiti Putra Malaysia‚ 43400 UPM Serdang‚ Selangor D.E.‚ Malaysia School of Industrial Technology‚ University
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